i've a search form with paging. when the user enters the keyword initially, it works fine and displays the required output; however, it also shows this error:
Notice: Undefined index: page in C:\Users\user\Documents\Projects\Pro\search.php on line 21 Call Stack: 0.0011 372344 1. {main}() C:\Users\user\Documents\Projects\Pro\search.php:0
. .and if the user clicks on the 'next' page, it shows no
output with this error thrown:
Notice: Undefined index: q in C:\Users\user\Documents\Projects\Pro\search.php on line 19 Call Stack: 0.0016 372048 1. {main}() C:\Users\user\Documents\Projects\Pro\search.php:0
this is my code:
<?php
ini_set('display_errors',1);
error_reporting(E_ALL|E_STRICT);
include 'config.php';
$search_result = "";
$search_result = trim($_GET["q"]);
$page= $_GET["page"]; //Get the page number to show
if($page == "") $page=1;
$search_result = mysql_real_escape_string($search_result);
//Check if the string is empty
if ($search_result == "") {
echo "<p class='error'>Search Error. Please Enter Your Search Query.</p>" ;
exit();
}
if ($search_result == "%" || $search_result == "_" || $search_result == "+" ) {
echo "<p class='error1'>Search Error. Please Enter a Valid Search Query.</p>" ;
exit();
}
if(!empty($search_result))
{
// the table to search
$table = "thquotes";
// explode search words into an array
$arraySearch = explode(" ", $search_result);
// table fields to search
$arrayFields = array(0 => "cQuotes");
$countSearch = count($arraySearch);
$a = 0;
$b = 0;
$query = "SELECT cQuotes, vAuthor, cArabic, vReference FROM ".$table." WHERE (";
$countFields = count($arrayFields);
while ($a < $countFields)
{
while ($b < $countSearch)
{
$query = $query."$arrayFields[$a] LIKE '%$arraySearch[$b]%'";
$b++;
if ($b < $countSearch)
{
$query = $query." AND ";
}
}
$b = 0;
$a++;
if ($a < $countFields)
{
$query = $query.") OR (";
}
}
$query = $query.")";
$result = mysql_query($query, $conn)
or die ('Error: '.mysql_error());
$totalrows = mysql_num_rows($result);
if($totalrows < 1)
{
echo '<span class="error2">No matches found for "'.$search_result.'"</span>';
}
else
{
$limit = 3; //Number of results per page
$numpages=ceil($totalrows/$limit);
$query = $query." ORDER BY idQuotes LIMIT " . ($page-1)*$limit . ",$limit";
$result = mysql_query($query, $conn)
or die('Error:' .mysql_error());
?>
<div class="caption">Search Results</div>
<div class="center_div">
<table>
<?php while ($row= mysql_fetch_array($result, MYSQL_ASSOC)) {
$cQuote = highlightWords(htmlspecialchars($row['cQuotes']), $search_result);
?>
<tr>
<td style="text-align:right; font-size:15px;"><?php h($row['cArabic']); ?></td>
<td style="font-size:16px;"><?php echo $cQuote; ?></td>
<td style="font-size:12px;"><?php h($row['vAuthor']); ?></td>
<td style="font-size:12px; font-style:italic; text-align:right;"><?php h($row['vReference']); ?></td>
</tr>
<?php } ?>
</table>
</div>
<?php
//Create and print the Navigation bar
$nav="";
if($page > 1) {
$nav .= "<a href=\"search.php?page=" . ($page-1) . "&string=" .urlencode($search_result) . "\"><< Prev</a>";
}
for($i = 1 ; $i <= $numpages ; $i++) {
if($i == $page) {
$nav .= "<B>$i</B>";
}else{
$nav .= "<a href=\"search.php?page=" . $i . "&string=" .urlencode($search_result) . "\">$i</a>";
}
}
if($page < $numpages) {
$nav .= "<a href=\"search.php?page=" . ($page+1) . "&searchstring=" .urlencode($search_result) . "\">Next >></a>";
}
echo "<br /><br />" . $nav;
}
}
else {
exit();
}
?>
